To guard against any disaster situations this monsoon,the MMRDA opened its 24-hour Control Rooms on Friday,ahead of its pre-monsoon desiltating and Mithi-river deepening work. Five nodal officers will monitor the rooms to be managed by 35 officials in three shifts. We have also asked all concerned to strictly observe safety measures,maintain barricades with top security and clear road muck, said Rahul Asthana,MMRDA Commissioner. People can contact the Control Room in cases of water logging,accidents,traffic snarls and uprooting of trees. Helpline numbers are 26591241,26594176 and 8080705051.